Propeller



July 10, 1923.

E. VOGE PROPELLER Filed March 2, 1922 3110mm for W mm) v- F; 0 l I i /5Patented July 10, 1923.

llltlll'fifi STATES trainee earner EDWARD VOG-E, OF WEST ALEXANDRIA,OHIO.

PROPELLER.

Application filed March 2, 1922. Serial No. 540,621.

7 and useful Improvements in Propellers, of

which the following is a specification, reference being had therein tothe accompanying drawing. My invention relates to propellers and inparticular to propellers for aeronautical purposes.

It is an object of my invention to provide a propeller in which thesurface can be varied at difierent positions of the propeller. It is afurther object of my invention to provide means of varying the effectivearea of the propeller as it revolves on its axis.

It is my object to provide a novel mechanical movement by which as thepropeller moves as a unit about its main axis a portion thereof will beshifted laterally to expose one portion thereof.

In particular, it is my object to adapt my propeller to airplanes andthe like but I do not desire to confine myself to this application as myconstruction is adaptable to other uses such as stirrers for fluids,etc. where it is desirable to have a stirrer of one area in one portionof the fluid and a stirrer of a diiferent area in another portion of thefluid to set up certain predetermined currents in the fluid mass.

Referring to the drawings:

Fig. 1 is an elevation of one side of my propeller;

Fig. 2 is an elevation of the other side of my propeller;

ig. 3 is a section on the line 33 of Fig. 1, looking downwardly;

Fig. 4: is a section on the line 44 of Fig. 1, looking downwardly;

Fig. 5 is a section on the line 5-5 of Fig. 1, looking towards the righthand to show the cam mounting for actuating the shutters on mypropeller.

In detail, the drawings show a bracket 1 of any suitable character whichmay be a portion of an airplane etc., in which is journaled an operatingshaft 2. This shaft is also journaled in a diagonal bracket 3 which ismounted on 1 by the studs 41 and 5. The bracket 3 is spaced from 1 atone end by a collar 6. Mounted on 3 is a cam ring 7. It is retained on 3by the bolts 8. A link or rocking arm 9 is pivoted on the shaft 2 by apin 10 so that it reciprocates or rocks back and forth'about 10 as anaxis and at the same time moves bodily with 2 about the major axis of 2as an axis. At either end of 9 is pivoted a link 11 which is in turnpivoted at 12 to a plurality of shutters 13, consisting f vertical barsor members of any desired configuration, connected together at the endsthereof by cross members 55 14 which are guided by rollers 15 mounted onthe propeller frame 16. The propeller frame has a plurality of cut awayportions 17 of a width equal to the width of the shutters 13.

In the upper part of Fig. 1 it will be seen that the shutters haveclosed the openings 17 while in the lower part of Fig. 1 these openingshave been opened by the shutters 13 being withdrawn. The propeller frame16 is fastened by the pins or any other suitable means designated 18 tothe main driving shaft 2 to which the power is applied.

It will be understood that I may employ one or more openings 17 andcorresponding shutters 13 and I may employ one or more propellers on thesame shaft either located on different portions of the shaft or locatedon the same shaft depending upon the adaptation I desire to make of mypropeller.

It will be also understood that the construction is an illustrative oneand I do not desire to be confined to the mechanical de tails, but havesimply shown this construc tion for the purposes of a simpleillustration in order that my invention may be readily understood.

As to the operation of my invention, power is ordinarily applied to theshaft 2, although I comprehend within my invention the application ofpower to the pro peller blades and the constant transmission of power tothe shaft 2. As the propeller rotates, the openings 17 will be closed onthe upstroke and maintained in their closed position a predeterminedtime and then gradually'opened on the downstroke, remaining open apredetermined time until the closing operation takes place again.Simultaneously the shutters on the other end of the propeller open andclose at opposite times to the opening and closing of the firstmentioned shutters.

This results in a variable resistance offered to the fluid medium inwhich the pro- 110 peller is traveling to satisfy certain conditions ofuse.

Having thus fully described my invention, what I claim as new and desireto secure by Letters Patent, is

1. In combination, a propeller, a shaft upon which the propeller ismounted, an opening in either end of the propeller in the body thereof,a shutter on either end thereof to close said opening, means mountedupon the propeller shaft and rotating); therewith to automaticallyoperate the shutter intermittently to opened and closed position atdifferent points in the revolution of the propeller, said operatingmeans being adapted to rotate with said shaft, and means located.adjacent the propeller shaft to cause the operating means to rock.

2. In combination, a driving shaft, a propeller mounted thereon,openings in either end of the propeller, shutters therein adapted to beshifted laterally to close the opening, a cam upon the driving shaft, aroclrshaft mounted thereon, and means connecting the rock shaft to theshutters whereby upon the rotation of the propeller shaft the rock shaftwill automatically operate the ineina i shutters intermittently toopened and closed positions at diiferent points in the revolution of thepropeller.

3. In combination, propeller, a shaft on which said propeller ismounted, a plurality of openings in either end of said propeller, aplurality of shutters adjacent thereto, means for connecting; saidshutters to one another and spacing them from one another, guiding meanson said propeller adapted to ensaid connecting means to guide saidshutters acent the openings, a link connected to .ach group of shutters,a rock arm connected to each link at either end thereof, said rock armbeing pivoted on the main shaft on which the propeller is mounted, a cammounted adjacent said rock arm whereby as the propeller rotates the camwill rock the rock arm and the shutters will be actuated to close theopenings in either end of the propeller intermittently.

in testimony whereof, I aiiii: my signature.

EDWMLRD VOGE.

